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number subtraction of multiple columns

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# 1  
Old 01-16-2009
number subtraction of multiple columns
I get the point of number subtraction in one column
Code:
awk 'NR==1 {n=$1; next}; {n-=$1} END {print n}' inputfile

but I cannot figure it out how to do this to multiple
columns.

awkward.
# 2  
Old 01-16-2009
Question merging rows into columns
FIle1

a 1
b 2
c 3
d 4

File 2

a 9
b 44

File3

c 5
d 8
c 4
d 0

Output


a b c d
1 2 3 4
9 44 5 8
4 0
# 3  
Old 01-16-2009
I am not a programmer or a student so it looks like I do not understand fully your reply
to my post.
Actually I meant that one file consists of multiple columns and subtraction must be done on each column in turn.
# 4  
Old 01-16-2009
Its better if you could post sample inputs and outputs
# 5  
Old 01-16-2009
1. Use while loop to read the columns.
2. store the result of each column in a variable and subtract that.

Am not sure whether is this right or not but if you send a sample file, i can say u
# 6  
Old 01-16-2009
Sample files
Yeh, we'll need some sample files (sample input and desired output)
# 7  
Old 01-16-2009
@awkward:
Double or cross posting is not allowed, read the forum rules:
The UNIX and Linux Forums - Forum Rules

@bogu0001:
Stop hijacking threads from other people.

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